Question

An object experiences a net non zero force. Is it possible for the object to travel with a constant speed in a straight line

Answer 1

yeah it is possible when the body has given an initial force and now it is free from the force and also it is on if it is doing it then it might be in the space and not in the atmosphere of the year because the atmosphere presents resistant towards it so that it will stop after some time
but if the object is given a force which is placed in a space then it will move with the same velocity for the infinite number of time until a resistive force is applied I hope you got it